I'm kind of joking about the whole "hobby" thing, and
@workman statement above is basically how I view it as well. I like kayaking, canoeing, fishing, and board games. Those are hobbies.
I also like bourbon, scotch, beer, cigars, and pipes. I also think of them more as an indulgence than a hobby, and I would certainly say these are "connoisseur" activities as
@BROBS described previously.
In between, and somewhat less clear, is my enjoyment of heating my house with wood in the winter, reading novels as well as nonfiction, and listening to and exploring new (to me) music. Those are almost more like regular enjoyable life activities.
All that said, Merriam-Webster's dictionary defines a "hobby" as "a pursuit outside one's regular occupation engaged in especially for relaxation." Pipe smoking definitely fits that description, at least to the extent that we truly pursue it rather than just having a pipe or two and smoking one or two blends and calling it good, as does pretty much everything else I listed above. I suppose maybe I just don't want to tell people that my favorite hobbies are drinking and smoking